src/gtkexcepthook.py

   1 # -*- coding:utf-8 -*-
   2 ## src/gtkexcepthook.py
   3 ##
   4 ## Copyright (C) 2005-2006 Nikos Kouremenos <kourem AT gmail.com>
   5 ## Copyright (C) 2005-2010 Yann Leboulanger <asterix AT lagaule.org>
   6 ## Copyright (C) 2008 Stephan Erb <steve-e AT h3c.de>
   7 ##
   8 ## This file is part of Gajim.
   9 ##
  10 ## Gajim is free software; you can redistribute it and/or modify
  11 ## it under the terms of the GNU General Public License as published
  12 ## by the Free Software Foundation; version 3 only.
  13 ##
  14 ## Gajim is distributed in the hope that it will be useful,
  15 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17 ## GNU General Public License for more details.
  18 ##
  19 ## You should have received a copy of the GNU General Public License
  20 ## along with Gajim. If not, see <http://www.gnu.org/licenses/>.
  21 ##
  22
  23 import sys
  24 import os
  25 import traceback
  26 import threading
  27
  28 import gtk
  29 import pango
  30 from common import i18n # installs _() function
  31 import dialogs
  32
  33 from cStringIO import StringIO
  34 from common import helpers
  35
  36 _exception_in_progress = threading.Lock()
  37
  38 def _info(type_, value, tb):
  39     if not _exception_in_progress.acquire(False):
  40         # Exceptions have piled up, so we use the default exception
  41         # handler for such exceptions
  42         _excepthook_save(type_, value, tb)
  43         return
  44
  45     dialog = dialogs.HigDialog(None, gtk.MESSAGE_WARNING, gtk.BUTTONS_NONE,
  46                             _('A programming error has been detected'),
  47                             _('It probably is not fatal, but should be reported '
  48                             'to the developers nonetheless.'))
  49
  50     dialog.set_modal(False)
  51     #FIXME: add icon to this button
  52     RESPONSE_REPORT_BUG = 42
  53     dialog.add_buttons(gtk.STOCK_CLOSE, gtk.BUTTONS_CLOSE,
  54             _('_Report Bug'), RESPONSE_REPORT_BUG)
  55     report_button = dialog.action_area.get_children()[0] # right to left
  56     report_button.grab_focus()
  57
  58     # Details
  59     textview = gtk.TextView()
  60     textview.set_editable(False)
  61     textview.modify_font(pango.FontDescription('Monospace'))
  62     sw = gtk.ScrolledWindow()
  63     sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
  64     sw.add(textview)
  65     frame = gtk.Frame()
  66     frame.set_shadow_type(gtk.SHADOW_IN)
  67     frame.add(sw)
  68     frame.set_border_width(6)
  69     textbuffer = textview.get_buffer()
  70     trace = StringIO()
  71     traceback.print_exception(type_, value, tb, None, trace)
  72     textbuffer.set_text(trace.getvalue())
  73     textview.set_size_request(
  74             gtk.gdk.screen_width() / 3,
  75             gtk.gdk.screen_height() / 4)
  76     expander = gtk.Expander(_('Details'))
  77     expander.add(frame)
  78     dialog.vbox.add(expander)
  79
  80     dialog.set_resizable(True)
  81     # on expand the details the dialog remains centered on screen
  82     dialog.set_position(gtk.WIN_POS_CENTER_ALWAYS)
  83
  84     def on_dialog_response(dialog, response):
  85         if response == RESPONSE_REPORT_BUG:
  86             url = 'http://trac.gajim.org/wiki/HowToCreateATicket'
  87             helpers.launch_browser_mailer('url', url)
  88         else:
  89             dialog.destroy()
  90     dialog.connect('response', on_dialog_response)
  91     dialog.show_all()
  92
  93     _exception_in_progress.release()
  94
  95 # gdb/kdm etc if we use startx this is not True
  96 if os.name == 'nt' or not sys.stderr.isatty():
  97     #FIXME: maybe always show dialog?
  98     _excepthook_save = sys.excepthook
  99     sys.excepthook = _info
 100
 101 # this is just to assist testing (python gtkexcepthook.py)
 102 if __name__ == '__main__':
 103     _excepthook_save = sys.excepthook
 104     sys.excepthook = _info
 105     raise Exception()